Below are my sighting-in experiences with three of them:
BURRIS FASTFIRE 3:
Mounted on a Ruger SR-556FB. Shooting off of a bench at 100 yards.
Several upward elevation adjustments did not produce any impact changes at all.
Windage only required a few clicks to the right. Unable to obtain a zero on the rifle.
VORTEX VENOM:
A.) Mounted on a Colt Gold Cup National Match Series 70. Shooting two-handed, unsupported at 25 yards.
Windage required major changes to the right. Able to obtain zero, but extremely close to running out of adjustment.
Elevation required just a few clicks upward. Windage and elevation adjustments were set back to their original, factory positions.
B.) Same sight was then mounted on a Smith & Wesson Model 586. Shooting two-handed, unsupported at 25 yards.
Exact same result was experienced as with the Gold Cup. Returned sight settings to their original locations.
C.) The sight was then mounted on a Ruger Mark II. Again, shooting two-handed, unsupported at 25 yards.
Same issue as before. Windage consistently way off, while elevation was very close with all three handguns.
LEUPOLD DELTAPOINT PRO:
Mounted on the Ruger SR-556FB. Shooting off of a bench at 100 Yards.
Windage required major changes to the left. Groups still 4 inches off. Stopped making furhter adjustments because sight was extremely close to running out of travel.
Elevation only required a few clicks to correct.
Is what I experienced considered to be normal? Must one go through some sort of "process" in order to get a usable sight? What is the failure rate of these things?
So far, one hundred percent of mine were "lemons". Is one manufacturer superior to all of the rest of them? What brand do you recommend? At 69, I need to use
optical sights, as my vision is not what it once was. When purchased years ago, all of the firearms mentioned above were easily zeroed with the iron sights that came
on them from the factory.
Reading several firearm magazines, it is apparent that dot sights are in vogue nowadays. However, I have noticed that so many shooters still keep back up iron sights
on their pistols and rifles. Initially puzzled by this practice, I now know why it is being resorted to! Your comments and advice are very much appreciated. Thank you.
BURRIS FASTFIRE 3:
Mounted on a Ruger SR-556FB. Shooting off of a bench at 100 yards.
Several upward elevation adjustments did not produce any impact changes at all.
Windage only required a few clicks to the right. Unable to obtain a zero on the rifle.
VORTEX VENOM:
A.) Mounted on a Colt Gold Cup National Match Series 70. Shooting two-handed, unsupported at 25 yards.
Windage required major changes to the right. Able to obtain zero, but extremely close to running out of adjustment.
Elevation required just a few clicks upward. Windage and elevation adjustments were set back to their original, factory positions.
B.) Same sight was then mounted on a Smith & Wesson Model 586. Shooting two-handed, unsupported at 25 yards.
Exact same result was experienced as with the Gold Cup. Returned sight settings to their original locations.
C.) The sight was then mounted on a Ruger Mark II. Again, shooting two-handed, unsupported at 25 yards.
Same issue as before. Windage consistently way off, while elevation was very close with all three handguns.
LEUPOLD DELTAPOINT PRO:
Mounted on the Ruger SR-556FB. Shooting off of a bench at 100 Yards.
Windage required major changes to the left. Groups still 4 inches off. Stopped making furhter adjustments because sight was extremely close to running out of travel.
Elevation only required a few clicks to correct.
Is what I experienced considered to be normal? Must one go through some sort of "process" in order to get a usable sight? What is the failure rate of these things?
So far, one hundred percent of mine were "lemons". Is one manufacturer superior to all of the rest of them? What brand do you recommend? At 69, I need to use
optical sights, as my vision is not what it once was. When purchased years ago, all of the firearms mentioned above were easily zeroed with the iron sights that came
on them from the factory.
Reading several firearm magazines, it is apparent that dot sights are in vogue nowadays. However, I have noticed that so many shooters still keep back up iron sights
on their pistols and rifles. Initially puzzled by this practice, I now know why it is being resorted to! Your comments and advice are very much appreciated. Thank you.